His brother met him at the Great Theatre yesterday afternoon, so he ____ have attended your lecture.
It was not until he came back _____ he knew the police were looking for him.
I hate _____ when the light turns red and the people don’t move until it is about to turn green again.
______ today, he would get to Germany by Friday.
He was very busy yesterday, otherwise he ____ to the meeting.
_____ the rain, the football game will not be cancelled.